An Efficient and Epimerization Free Synthesis of C-Terminal Arylamides Derived from alpha-Amino Acids and Peptide Acids via T3P Activation

A high yield and rapid synthesis of enantiomerically pure N (alpha) -protected amino/peptide acid arylamides using n-propylphosphonic anhydride (T3P) in presence of N-methylmorpholine is described. The generality of the reaction has been studied for various N (alpha) -protected amino acids with diverse range of aromatic amines and coumarin derivatives